Reasonable-------a relative term, kinda like RARE.

There is a Roth set on eBay right now at $290.00 with almost 3 days to go.
(if it sold for that amount I would consider it 'reasonable')

We just sold our Roth & Barris sets for an offer of $480.00......not too bad for about a three year, $40.00 investment!
(that I considered that a very nice offer)

I had only valued the two sets at a total of $350.00 when I offered the entire collection here for $1,500.00.
(now I can finish 'dumping' the rest of our collection on eBay starting at under face value)
Some are doing quit well, others may not get a bid.

(it does however look like we'll surpass the original $1,500.00 mark by a rather handsome amount.....gosh I love eBay sometimes!)

If, however, one is to constrew a 'reasonable' amount as $100.00 or so for the Roth set, I would figure that you may never actually see one...................